Počet záznamů: 1
FARWEST: Efficient Computation of Wave-Particle Interactions for a Dynamic Description of the Electron Radiation Belt Diffusion
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SYSNO ASEP 0562738 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název FARWEST: Efficient Computation of Wave-Particle Interactions for a Dynamic Description of the Electron Radiation Belt Diffusion Tvůrce(i) Dahmen, N. (FR)
Sicard, A. (FR)
Brunet, A. (FR)
Santolík, Ondřej (UFA-U) RID, ORCID
Pierrard, V. (BE)
Botek, E. (BE)
Darrouzet, F. (BE)
Katsavrias, C. (GR)Celkový počet autorů 8 Číslo článku e2022JA030518 Zdroj.dok. Journal of Geophysical Research-Space Physics. - : Wiley - ISSN 2169-9380
Roč. 127, č. 10 (2022)Poč.str. 21 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova radiation belts ; wave particle interaction ; diffusion equation ; data assimilation ; cold plasma density ; magnetospheric VLF waves Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Obor OECD Fluids and plasma physics (including surface physics) Způsob publikování Open access Institucionální podpora UFA-U - RVO:68378289 UT WOS 000865789700001 EID SCOPUS 85142917826 DOI 10.1029/2022JA030518 Anotace In this paper, we present a new method to compute rapidly, wave particle interaction induced pitch angle and momentum diffusion coefficients. Those terms are normally obtained by the numerical solving of equations based on the quasi-linear theory. However, this bulk resolution leads to a high computational cost, preventing the integration of plasma density and VLF waves nowcasts and forecasts. Therefore, and in the context of the SAFESPACE project (H2020), we implemented a new wave particle interaction code called FARWEST (FAst Radiation diffusion with Waves ESTimator), with an efficient interpolation based method. The proposed implementation was validated against reference results obtained by WAPI, ONERA's wave particle interaction legacy code, with a substantial reduction of the computing time while conserving the physical accuracy of the generated coefficients. The FARWEST code is later used to measure the impact of a time-dependent plasma density distribution (numerically computed by BIRA's plasmaspheric model SPM) on the coefficients and on the representation of the electron flux map by Salammbo, ONERA's radiation belt code. Pracoviště Ústav fyziky atmosféry Kontakt Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Rok sběru 2023 Elektronická adresa https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022JA030518
Počet záznamů: 1